Fire-resistant members containing gypsum fiberboard

Details Fire-resistant members containing gypsum fiberboard Fire-resistant members containing gypsum fiberboard

1995-02-14

1997-02-11

Ryan, Patrick

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428 68, 428 70, 428428, 428921, 521713, 52201, 522041, E04F 1304, E04F 1318, C04B 1106, C09D 516

Patent

active

056018886

ABSTRACT:
Fire-resistant structures are provided having at least a 20 minute ASTM E-152 fire test rating. The structures include glass partition walls having framing members formed from a gypsum-containing composition having a density of at least about 60 lbs/ft.sup.3, a flexural strength of at least 30 lbs ( 1/2 inch thick material), and a screw-holding capacity of at least about 400 lbs. The gypsum-containing composition further contains a substantially uniform distribution of solids including about 65 wt.% to about 90 wt.% set gypsum dihydrate, about 7 wt.% to about 30 wt.% paper fiber, and about 1.5 wt.% to about 35 wt.% of one or more performance boosters selected from inorganic fiber, clay, vermiculite, and binder polymer.

REFERENCES:
patent: 3773533 (1973-11-01), Omoto et al.
patent: 4120737 (1978-10-01), Berrie et al.
patent: 4159302 (1979-06-01), Greve et al.
patent: 4239716 (1980-12-01), Ishida et al.
patent: 4259818 (1981-04-01), Stark
patent: 4343127 (1982-08-01), Greve et al.
patent: 4445937 (1984-05-01), Bassier et al.
patent: 4557973 (1985-12-01), Ali
patent: 4664707 (1987-05-01), Wilson et al.
patent: 4695494 (1987-09-01), Fowler et al.
patent: 4722866 (1988-02-01), Wilson et al.
patent: 4748771 (1988-06-01), Lehnert et al.
patent: 4840688 (1989-06-01), Vogt
patent: 5148645 (1992-09-01), Lehnert et al.
patent: 5155959 (1992-10-01), Richards et al.
patent: 5171366 (1992-12-01), Richards et al.
patent: 5305577 (1994-04-01), Richards et al.
patent: 5347780 (1994-09-01), Richards et al.

Affiliated with

Also associated with

Rating

Fire-resistant members containing gypsum fiberboard does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fire-resistant members containing gypsum fiberboard, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fire-resistant members containing gypsum fiberboard will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-340277